IT Support Analyst with 30+ Years Experience in AD, Security, Remote

*** ** ** *****, *********, UNITED STATES, ***** • **********@*******.*** • 972-***-****

DAVID SINCLAIR

IT Technical Support Analyst

PROFESSIONAL SUMMARY

IT Technical Support Analyst with over 30 years of extensive expertise in network troubleshooting, remote support, and system configuration. Adept at managing and developing Active Directory GPOs to enhance performance and security, while collaborating effectively with vendors to resolve complex issues. Committed to providing comprehensive technical documentation and user training, aiming to drive system efficiency and user satisfaction.

EMPLOYMENT HISTORY

DESKTOP SUPPORT/TDAG SUPPORT Jun 2025 - Present

Oncor ElectricIrving, TX

Maintain and update Transient laptops to the current patch levels.

Maintain weekly report to ensure all transient devices are within 30 days of security patches for AD, bit9, SCCM, SEPM.

Image Transient and Enterprise laptops.

Tech Stack: AD, PGP, SCCM. Carbon Black, RSA, CyberArk

TECHNICAL SUPPORT ANALYST IV/ACQUISITION SPECIALISTNov 2014 - Apr 2025

Service Experts LLCRichardson, TX

Maintain and update PC laptop images, enhance system efficiency and user experience.

Develop and manage Active Directory GPOs, optimizing computer performance and security.

Oversee OS and Antivirus updates, ensuring robust protection for user systems.

Collaborate with vendors to resolve complex desktop issues, improving toolset reliability.

Create technical guides for the IT Knowledge base, supporting staff with clear instructions.

Tech Stack: Service Now, Ivanti, AD, Antivirus, AirWatch, HP Jet Direct, Dell Tech Direct, Ghost,

Duo Console, Windows OS, Carbonite, OneDrive, Concur, FortiClient, ScreenConnect

INFORMATION MANAGEMENT SR SPECIALISTDec 2009 - Oct 2014

Xerox Business ServicesLewisville, TX

Designed and implemented core images for Lenovo desktops and laptops, enhancing client satisfaction.

Collaborated with technical teams to maintain a release schedule, ensuring timely updates.

Provided remote support, resolving complex imaging issues, boosting team efficiency.

Mentored junior technicians, improving their skills and contributing to team development.

Tech Stack: Service Now, MDT, AD, PGP, Antivirus, Ghost, Windows OS, HP

DESKTOP SUPPORT LEAD Sep 2008 - Dec 2009

Parkland Memorial Hospital / IstonishDallas, TX

Led hardware team in deploying Thin Clients hospital-wide, enhancing efficiency and reducing costs.

Coordinated installation of laptops and printers at nursing stations, improving staff productivity.

Managed project timelines and resources, ensuring seamless implementation across hospital departments.

Tech Stack: LANDesk, AD, Antivirus, Ricoh Printers, Excel, Windows OS

SECURITY TECHNICIAN Mar 2004 - Aug 2008

Dynamex INCDallas, TX

Conducted network security scans, ensuring SOX compliance and robust data protection.

Implemented and managed backup systems, enhancing data recovery processes.

Configured servers and set security protocols, optimizing branch operations.

Supported helpdesk and resolved technical issues, improving user satisfaction.

Managed network accounts, maintaining secure and efficient access control.

Tech Stack: Ghost, AD, Antivirus, Qualys, Legato, Dynamex DxNow, Windows OS, HP

LAN ADMINISTRATOR Jun 2000 - Mar 2004

XO Communications Plano, TX

Managed hardware/software support, enhancing system reliability and user satisfaction.

Led regional hardware distribution, optimizing inventory control and reducing downtime.

Collaborated on software imaging, ensuring seamless deployment and system consistency.

Configured new hires' systems, facilitating smooth onboarding and operational readiness.

Executed OS upgrades, aligning with company standards and improving system performance.

Tech Stack: Ghost, AD, Antivirus, Windows OS, HP

PC AND NETWORK SUPPORT ANALYST Feb 1998 - Jun 2000

Security Technologies Group Addison, TX

Provided PC and network support for local and remote users, ensuring seamless operations.

Configured desktops and resolved user incidents, enhancing system reliability.

Maintained remote database connections, facilitating efficient data access.

Managed Active Directory for users and computers, optimizing network security.

Improved IT support processes, leading to measurable efficiency gains.

Tech Stack: Windows OS, AD, Antivirus, HP, PC Anywhere

EDUCATION

BACHELOR'S DEGREE IN COMPUTER INFORMATION SYSTEMSOct 1987 - May 1990

DeVry UniversityIrving TX

SKILLS

Network Troubleshooting, Remote Support, System Configuration, User Training, Incident Management, Technical Documentation, Hardware Repair, Imaging, OneDrive.

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